The story
- Frenchélectro-
- Latinēlectrum
- Latinelectro-
- Englishelectro-
- Late Latincyclus
- Middle Englishcicle
- Englishcycle
- Englishcyclize
- Englishcyclization
- English todayelectrocyclization
From electro- + cyclization.
Etymology from Wiktionary, CC BY-SA 4.0.